One of the ladies I work with is married to a concrete contractor. He says
that one important thing to remember when it is setting up is to keep it
wet. He waters a pour just about every day to keep it from cracking. 73
Tom W7WHY
> My understanding is that -- in the US, at least -- the specified
> strength of concrete is achieved only after 28 days. What percentage it
> would have achieved after two days, a week, two weeks, etc., I don't know.
>
> I have been quoted an 8-week delivery delay for the tower I have in
> mind, but I can get the base plate and bolts delivered ahead of time so
> that the concrete will have had at least the full four weeks to harden
> before I put any load on it.
>
> Alan NV8A
>
>
> On 07/31/06 11:23 am ADRIAN REES wrote:
>
>> Over here in the UK, I am about to "plant" 4 towers, and pour C35 Grade
>> Concrete in the bases. Anyone know what is the setting time for this
>> stuff, and can it poured in one or two lots ? Getting this amount of
>> concrete onto the site is not easy. I live up a mountain, with access
>> limited to 4 Wheel Drive vehicles, and certainly a Truck will be near
>> impossible to get on site, let alone a Ready Mix Concrete one ! So I may
>> have to mix on site, and pour in batches.
>>
>> Comments ?
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